How does velocity and acceleration apply to swimming?
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'v' generally refers to final velocity. 'u' generally refers to initial velocity (because not everything starts from a motionless state, where 'u' would equal zero). It is better to annotate initial velocity as v 0 (v-sub-zero or simply v-zero).
Acceleration and velocity Velocity - which is not quite the same thing as speed -- is the measure of the rate of change in position. In other words, to calculate velocity, we divide the change in an object's displacement -- how far it moved -- by the time it took to move. If an object moves, say, …100 feet in 10 seconds, its velocity is 100/10 = 10 feet per second (ft/s). Acceleration is the rate of change of velocity. If an object increases its speed from, say, 10 ft/s to 60 ft/s in five seconds, its acceleration is 10 feet per second per second, or 10 feet per second squared (ft/s 2 ). How did we arrive at that figure? Divide the change in velocity by the change in time. The change in velocity is 60 - 10 = 50 ft/s. The change in time is 5 - 0 = 5 s. Hence, 50/5 = 10 ft/s 2 . ( Full Answer )
velocity is the rate of change of displacement with respect to time where as acceleration is the rate of change of velocity with respect o tome.
Velocity is defined by physicists as both speed and direction, that is to say, if you are moving at 30 feet per second in a northerly direction, that is a velocity. Acceleration means a change in velocity. Physicists consider speeding up, slowing down, or changing direction all to be forms of accele…ration; in more everyday usage, acceleration us used to mean speeding up and deceleration means slowing down. So, if your speed increases from 30 feet per second to 40 feet per second, that is acceleration. ( Full Answer )
-- 'Velocity' is the rate at which position is changing, and the direction of the change. -- 'Acceleration' is the rate at which velocity is changing, and the direction of the change.
Acceleration is the change of speed upward. Velocity is any speed, in a fixed direction. So the diference, is that in speed; the direction can change, but the speed remain constant. Only if it moves faster or slower dose the speed change. So in velocity, if the speed, or the direction change, th…en the velocity changes. ( Full Answer )
Speed is the rate of motion usually expressed as distance traveled per unit of time. . Velocity is the rate of change of position. Both speed and direction are required.. Acceleration is the rate of change in velocity. In common speech, acceleration is only for an increase in speed; a decrease… in speed is deceleration. In physics, any increase or decrease in speed or change of direction is referred to as acceleration.. For more information, look at:. http://en.wikipedia.org/wiki/Speed. http://en.wikipedia.org/wiki/Velocity. http://en.wikipedia.org/wiki/Acceleration ( Full Answer )
Yes. Velocity is speed per unit of time with a direction vector telling you which way the object in question is moving. Acceleration is a change in velocity - in any part of velocity. If something like, say, a rock is in deep space (a zillion light years from anything) and it's moving along unaffect…ed by any gravity or other forces, it has some velocity (some speed in a given direction, or is moving at some distance per unit of time in a given direction), but it isn't changing speed or direction. If something is moving without changing its speed or its direction (either of which requires a force to act on the object - to accelerate the object), it has zero acceleration. Such an object is said to have a constant velocity and will have zero acceleration.. Certainly if an object is not moving, it has zero velocity and zero acceleration, but that's probably not what is being asked. It has velocity (zero) and no acceleration. To recap, an object can have a non-zero velocity and zero acceleration. ( Full Answer )
Velocity is the speed of an object in any given direction (constant); acceleration measures the change in speed of an object over time.
Acceleration increases the velocity. There are two physics formulas that you can use to see more how they interact. The first is a formula for determining your current velocity at a given moment t, knowing your initial velocity and your current acceleration. v = v0 + at (v0 is v-naught. The… zero is usually written as a subscript.) You can solve this equation for a to get a formula for acceleration as well. a = (v-v0)/t So, basically, at any given interval t, the acceleration has been added onto the current velocity that many times. ( Full Answer )
That can't happen. If there is any acceleration at all, then velocity is not constant.
Velocity is a vector, meaning that it has a direction. When it is being expressed, the direction is given with it (e.g. 5m/s NW). Speed is a scalar, not a vector, so it doesn't have a direction connected with it. Thus, when it is expressed, the direction variable is omitted (e.g. 5m/s). Accele…ration is a change in velocity or speed over time. It will be a vector when it is referring to a change in velocty (e.g. 10m/s 2 SE), and it will be a scaler when it is referring to a change in speed (e.g. 10m/s 2 ). ( Full Answer )
Acceleration is the rate at which velocity changes with time, where as velocity is speed with a direction.
Velocity is speed in a given direction Acceleration is the rate in which you change velocity.
Acceleration is the rate of change of velocity over time. One formula that shows this relationship is: v f =v i +at where: . v f = final velocity . v i = initial velocity . a = acceleration . t = time
Speed and velocity same thing and acceleration is how fast it can get to a speed. More acceleration will get faster quicker
Velocity is the speed of an object in a given direction . So if a vehicle is travelling down a street at 30 miles per hour both its speed and velocity is 30 miles per hour. However, if it turns round and travels back at 30 miles per hour its speed is the same, but its velocity is now in the… opposite direction and will therefore be minus 30 miles per hour (-30mph). Acceleration is the rate of change of velocity.. So if a vehicle is travelling at a steady velocity of 10 metres per second, its acceleration is zero as the speed is steady and doesn't change. However, if it has an acceleratiion of 10 metres per second, every second, (or 10 metres per second per second or 10m/s/s) then every second it speeds up an extra 10 metres per second. this means that at constant velocity it is doing 10 metres per second. After the first second it speeds up to 10 + 10 or 20 metres per second, in the second second 20 + 10 or 30 metres per second, in the third second 30 + 10 or 40 metres per second and so on.. Another example is a cyclist travelling at 5 metres per second and an acceleration of 3 metres per second per second. He accelerates thus:. At the start he is doing a constant velocity of 5 metres per second. . After 1 second he does an extra 3 metres per second so he is now doing 8 metres per second . After 2 seconds he does an extra 3 metres per second so he is now doing 11 metres per second. . After 3 seconds he does an extra 3 metres per second so he is now doing 14 metres per second. . After 4 seconds he does an extra 3 metres per second so he is now doing 17 metres per second . and so on. Decelleration (or slowing down) is measured in the same way but amount slowed down is subtracted from the velocity instead of being added. ( Full Answer )
Acceleration changes the speed - usually increases it. A reduction is speed is negative acceleration , or deceleration. Acceleration can change the speed or direction (or both) of velocity.
They aren't, but they can be described as vectors. The most common way is to describe them as vectors of three components in Euclidian space..
No, the definition of acceleration is the increase change in velocity over time. An acceleration can also be a decrease in velocity over time. Constant velocity refers to an object that maintains the same velocity as time progresses. If the object has an acceleration, its velocity will not remain …constant. In the case of rotational velocity there is a constant internal acceleration that has the magnitude v 2 /r ( Full Answer )
Velocity and Acceleration are both vectors. Vectors meaning they both have magnitude and direction. Also both involve some measure of speed.
Velocity or speed is the rate of motion across a distance, while acceleration is the rate of change in velocity, i.e. speeding up (or in deceleration, slowing down).
No. Acceleration is (change of velocity) divided by (time interval in which it changed).. If velocity doesn't change, then there is no acceleration.
obviouslly not. there are many cases where the velocity is present but not acceleration and vce versa. it is also applicable for the direction of the measurements.
It's not possible to tell from only that much information. When you throw a rock up, its acceleration is the acceleration ofgravity from the moment it leaves your hand until it hits the ground. But itsvelocity is upward some time, downward some time, and zero at the top.
Yes, velocity and acceleration are vectors as they both have a magnitude and a direction.
They are not the same. Velocity is the displacement (change in location) over time and acceleration is the change in velocity over time.
TIME is a factor in both measurements. Velocity is speed (distance divided by TIME) in a given direction. Acceleration is measured in velocity per unit of TIME. Therefore, they both have TIME in common.
v=u+at where v is final velocity u is initial velocity a is acceleration and t is time taken for the journey
When a ball is thrown up in the air there is a moment, when the ball reaches its maximum height, the velocity of the ball is zero, and acceleration due to gravity still exists [downwards]. If the velocity is zero, the acceleration is not necessarily zero. .
No, since acceleration is defined as a change in velocity. If there is no change, there is no acceleration.
when a ball is thrown upwards velocity increases but accelerationdecreases hence making it anti parallel to each other
Sure. A pendulum, a child's playground swing, and a bullet shot straight up all have constant acceleration, and all reverse direction.
An object's force (in Newtons) is the product of its velocity andacceleration: F = m x a
Its to do with constant values, the rate of acceleration refers to a constant change of velocity over time, so an acceleration of 10 (m/s)/s is a constant increase of velocity per unit time ( increase of 10 metres per second, every second ) Velocity is a constant increase in distance, per unit tim…e (metres per second) ( Full Answer )
No. If they were the same thing, there would be no need to invent two different names for it. Acceleration is the rate at which velocity changes.
'Velocity' means the rate at which position changes, and the direction in which it changes. 'Acceleration' means the rate at which velocity changes, and the direction in which it changes.
A moving object being accelerated will show a change in its velocity (it may move faster, or slower, or experience a change in direction). A stationary object will respond to acceleration only if there is no other force acting to prevent its response. For example: gravity is a constant force of acc…eleration, but objects cannot move toward the center of the earth if they are being blocked by another object. ( Full Answer )
I'm not quite sure what you're asking, but..... An object that is accelerating simply means that that object's velocity is changing . It can be increasing (positive accel.) or decreasing (negative accel.). If the acceleration is zero, that means the velocity is constant. (Keep in mind that thes…e are all vector quantities, so they will have directions as well as magnitudes, and the positive/negative may be reversed.) ( Full Answer )
No. The definition of acceleration is the change in an object's velocity over time. Acceleration must then be zero since velocity remains constant.
No. Acceleration IS a change of velocity - any change. When velocity increases, there IS acceleration. The acceleration itself may be increasing, decreasing, or remain constant.
Uniform velocity means the velocity is not changing. Acceleration is defined as the rate of change of velocity. If velocity isn't changing, the rate of change is zero.
What potential difference must be applied to produce an electric field that can accelerate an electron to a velocity of 10 raised to 7 meters per second?
An electron, being a charged body, is acted on by a force, and is therefore accelerated, when immersed in an electric field. If you really want to be cruel, you attach numbers to the whole situation and hand it to someone to solve. The kinetic energy of a moving electron is KE = (Lorentz f…actor - 1) x (rest-mass electron ) x c 2 Lorentz factor = [sqrt( 1 - v 2 / c 2 )] -1 KE 10 7 m /s = (4.5588 x 10 -17 Joule) / (1.6 x 10 -19 eV /J ) = 284.9 electron-volts So you need 285 volts between the plates in order to have the electrons moving as fast as you want them when they hit the positive plate. I'm sure there had to be an easier way to do this. ( Full Answer )
Speed is (distance covered) divided by(time taken to cover the distance). Velocity is a speed and its direction. Acceleration is any change of velocity.
Because acceleration is the rate of change of velocity: it is a measure of how quickly velocity is changing.
The velocity changes. Acceleration refers to the rate of change of velocity, i.e., how fast it changes.
Acceleration is change of velocity divided by time; so if the velocity doesn't change, acceleration is zero.
Both velocity and acceleration can be negative when an object is slowing down, or when an object accelerates backwards, which is a negative direction, such as a car backing out of a driveway.
In the case of an object thrown, batted, teed off, or dropped, itsacceleration at the instant of its maximum velocity is 9.8 meters persecond 2 downward.
Yes, that's the whole idea of acceleration. To be precise, acceleration is defined as the rate of change of velocity - how fast velocity changes. In symbols: a = dv/dt